Magnetic-Field-induced Antiferromagnetism in Two-dimensional Hubbard Model: Analysis of CeRhIn5
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چکیده
منابع مشابه
Magnetic Field Induced Antiferromagnetism in a Two-Dimensional Hubbard Model: analysis of CeRhIn5
We propose the mechanism for the magnetic field induced AFM state in a two-dimensional Hubbard model in the vicinity of the antiferromagnetic (AFM) quantum critical point (QCP), using the fluctuation-exchange (FLEX) approximation by taking the Zeeman energy due to magnetic field B into account. In the vicinity of the QCP, we find that the AFM correlation perpendicular to B is enhanced, whereas ...
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M. Capone1 and G. Kotliar2 1INFM-SMC and Istituto dei Sistemi Complessi, Consiglio Nazionale delle Ricerche, Via dei Taurini 19, I-00185, Rome, Italy and Physics Department, University of Rome “La Sapienza,” Piazzale A. Moro 5, I-00185, Rome, Italy 2Physics Department and Center for Materials Theory, Rutgers University, Piscataway, New Jersey 08854, USA Received 9 March 2006; published 30 Augus...
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We present single-particle and thermodynamic properties of the half-filled single-band Hubbard model in 2D calculated in the self-consistent fluctuation exchange approximation. The low-energy excitations at moderate temperatures and small U are quasiparticles with a short lifetime. As the temperature is lowered, coupling to evolving spin fluctuations leads to the extinction of these quasipartic...
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ژورنال
عنوان ژورنال: Journal of the Physical Society of Japan
سال: 2005
ISSN: 0031-9015,1347-4073
DOI: 10.1143/jpsj.74.271